Ok, just have a look at the grill on the driver's side, where it faces you rather than the window, there is a little square of plastic nearer the door, just prise that from the bottom and that will pop off, under that is a screw, undo that, and you can pull the grill away...
If you want to wait, when its light tomorrow, I'll take some pictures and post them up here so you know exactly what to do.
